Missing Side Length in a Rectangular Prism (How to get EVERY mark in an exam)

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Next step on from just dividing down from the volume to reveal the missing side length. Earn every mark by showing the accompanying math, which is done by rearranging the equation. It is put in easy to understand terms, nothing to scare you here, just a mathematical explanation on the page that will make sense to you as we develop it. You are SO going to ace this now!